Because she'd just eaten a bowl of corn flakes, Ms. Frazzle, while swimming in the pool got a sudden side cramp and had to be rescued by the lifeguard.

A) Because she'd just eaten a bowl of corn flakes Ms. Frazzle while swimming in the pool got a sudden side cramp and had to be rescued by the lifeguard.
B) Because she'd just eaten a bowl of corn flakes Ms. Frazzle while swimming in the pool got a sudden side cramp and had to be rescued by the lifeguard.
C) Because she'd just eaten a bowl of corn flakes, Ms. Frazzle, while swimming in the pool got a sudden side cramp and had to be rescued by the lifeguard.
D) Because she'd just eaten a bowl of corn flakes, Ms. Frazzle, while swimming in the pool, got a sudden side cramp and had to be rescued by the lifeguard.